Finding the Fourth Proportional to 72,408.06, 108,528.12 and 42,850.76

Step by Step Solution

1. Step 1: Write the proportion equation
   72,408.06 : 108,528.12 = 42,850.76 : x
2. Step 2: Convert to fraction form
   72,408.06/108,528.12 = 42,850.76/x
3. Step 3: Cross multiply
   72,408.06x = 108,528.12 × 42,850.76
4. Step 4: Simplify right side
   72,408.06x = 4,650,511,880.73
5. Step 5: Solve for x
   x = 4,650,511,880.73/72,408.06
6. Step 6: Final answer
   x = 64,226.44